1. Harrington Heart and Vascular Institute, University Hospital Cleveland Medical Center Case Western Reserve University Cleveland Ohio
2. Department of Medicine Saint Francis Hospital and Medical Center Hartford Connecticut
3. Department of Medicine Rochester General Hospital Rochester New York
4. Department of Medicine Mount Auburn Hospital‐Harvard Medical School Cambridge Massachusetts
5. Department of Medicine Sri Guru Ram Das Institute of Medical Sciences & Research Amritsar Punjab India
6. Department of Medicine Cape Fear Valley Medical Center North Carolina
7. Department of Computer Science Lamar University Beaumont Texas
8. Department of Cardiology University of Iowa Hospitals & Clinics Iowa city Iowa